Untrue about physical properties of nitrous oxide is:
|A||Heavier than air|
|B||Less soluble than nitrogen|
|C||Critical tempera true is more than room temperature|
|D||Stored as liquid in cylinders|
Less soluble than nitrogen
a. Nitrous oxide is 35 times more soluble than nitrogen and this is very important property of nitrous oxide.
b. If there is any air filled cavity in body, for 1 mole of nitrogen removed 35 moles of nitrous oxide enters and the size of cavity can increase significantly so nitrous oxide is contraindicated in pneumothorax, pneumomediastinum, pneumoencephalum and pneumoperitoneum.
c. It is 1.5 limes heavier than air.